Key tips provide users accessibility to the Ribbon using the keyboard. To start the process the user must press Alt or F10. KeyTips are shown over controls.

To make key tips work, it is enough to set the attached property Fluent:KeyTip.Keys to the target control, and the ribbon will arrange and show the key tips automatically. It is possible to set key tips to menu and / or submenu items. You also need to set a key tip for groups to open them while they are collapsed.

<Fluent:RibbonGroupBox Fluent:KeyTip.Keys="ZC" ... >
    <Fluent:SplitButton Fluent:KeyTip.Keys="R" ... >
        <Fluent:MenuItem Fluent:KeyTip.Keys="P" ... />
        <Fluent:MenuItem Fluent:KeyTip.Keys="R" ... >
            <Fluent:MenuItem Fluent:KeyTip.Keys="O" ... />

As you can see, items in the Quick Access Toolbar are key tipped automatically. Also key tips are placed well automatically. However, there are cases when custom placement is required. In this case you have to set Fluent:KeyTip.AutoPlacement to false and use additional attached properties:

Property Description
KeyTip.AutoPlacement true by default. Set to false to switch on custom placement.
KeyTip.Horizontal Horizontal alignment relative to key tipped control
KeyTip.VerticalAlignment Vertical alignment relative to key tipped control
KeyTip.Margin Margin to offset key tip
<Fluent:RibbonGroupBox Header="Group">
    <Fluent:Button Text="Center" LargeIcon="Images\GreenLarge.png"
                   Fluent:KeyTip.Keys="C" />
    <Fluent:Button Text="Left" LargeIcon="Images\GrayLarge.png"
                   Fluent:KeyTip.Keys="L" />
    <Fluent:Button Text="Top" LargeIcon="Images\YellowLarge.png"

Screen Tips

To use screen tips you have to create a Fluent.ScreenTip instance and set the ToolTip property:

<Fluent:Button ... >
        <Fluent:ScreenTip Title="Gray"
                          HelpTopic="Help for Gray ScreenTip"
                          Text="This ScreenTip is ribbon aligned. &#x0a;
                                It has the image and handles F1."/>

ScreenTip has a unique feature to invoke the contextual help when it is in the open state. To handle contextual help you must set ScreenTip.HelpTopic in XAML and subscribe to the ScreenTip.HelpPressed event. Be aware that the event is static, so you must manually unsubscribe from it when it is appropriate to avoid memory leaks or subscribe the application’s lifetime object as shown below:

public partial class Application : System.Windows.Application
    void OnStartup(object sender, StartupEventArgs e)
        ScreenTip.HelpPressed += OnScreenTipHelpPressed;

    /// <summary>
    /// Handles F1 pressed on ScreenTip with help capability
    /// </summary>
    /// <param name="sender">Sender</param>
    /// <param name="e">Arguments</param>
    static void OnScreenTipHelpPressed(object sender, ScreenTipHelpEventArgs e)
        // Show help according the given help topic
        // (here just show help topic as string)

ScreenTip shows on disabled Fluent-based controls automatically. Moreover you can set text which should be shown when the target control is disabled.

<Fluent:Button IsEnabled="False" ... >
        <Fluent:ScreenTip Title="Orange" Width ="250"
                          Text="This control is disabled and has fixed width 250px"
                          HelpTopic="Help for Orange ScreenTip"
                          DisableReason="This control is disabled
                                         to show 'disable reason' section"/>

You can find the main properties of ScreenTip in the table below.

Property Description
ScreenTip.Title The title of the screen tip
ScreenTip.Text The text of the screen tip
ScreenTip.Image Image
ScreenTip.Width Set this property if you want to make fixed sized screen tip.
ScreenTip.DisableReason If the target control is disabled, this text will be shown to user.
ScreenTip.HelpTopic Set this property and subscribe to ScreenTip.HelpPressed to execute your contextual help.